Re: Syntax errors will be the death of me!
- From: Alex Hall <mehgcap@xxxxxxxxx>
- To: programmingblind@xxxxxxxxxxxxx
- Date: Sat, 10 Jul 2010 22:50:08 -0400
Oh, I did not see that one. Cpp, again, is definitely not my primary
language; in fact, I only know a few phrases in it.
All Joseph did here was replace the switch with a set of conditional
statements. Functionally, they do the same thing, but, of course, they
are syntactically different. If you know switches, I assume you
already know conditionals (if else) statements.
A third, more advanced way would be to store the possible responses in
an array, then just try something like
cout << responses[code] << endl;
That would also require the cpp version of a try/catch (a way to catch
an error, so you could make sure that you are not requesting a code
outside of the array bounds). This is all unimportant, just something
to ponder, and recognize later as you continue learning programming.
On 7/10/10, Joseph Lee <joseph.lee22590@xxxxxxxxx> wrote:
> Hi,
>
> I see. You are already learning switch statement? That's an impressive
> progress.
>
> A brief hint: On the following lines, check out the display (cout) code. Do
> you notice any difference:
>
> // Jess's version:
>
> cout << "Freshman."; << endl;
>
> // Joseph's version:
>
> cout << "Freshman." << endl;
>
> Notice that there is no semicolon after the text message. If you do put
> semicolon, you'll get the syntax error because the compiler couldn't find
> the output (cout) operator. A slightly better variation might be:
>
> cout << "Freshman".;
>
> cout << endl;
>
> Another hint (mostly an advice): In the conditional statement, you might
> want to try "if" statement versus the "switch" statement. Here's how I would
> do it (if I were you):
>
> // Joseph's variation:
>
> // Uses if statement to select a printout message.
>
> if (code == 1)
>
> cout << "Freshman." << endl;
>
> else if (code == 2)
>
> cout << "Sophomore." << endl;
>
> else if (code == 3)
>
> cout << "Junior." << endl;
>
> else if (code == 4)
>
> cout << "Senior." << endl;
>
> else
>
> cout << "Error: invalid code!" << endl;
>
> I (or someone) will explain the previous code in a sec.
>
> Cheers,
>
> Joseph
>
>
>
>
>
>
>
> From: programmingblind-bounce@xxxxxxxxxxxxx
> [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Jes
> Sent: Saturday, July 10, 2010 7:21 PM
> To: programmingblind@xxxxxxxxxxxxx
> Subject: Syntax errors will be the death of me!
>
>
>
> Hey guys,
>
> Here's a code for an assignment which has to be turned in tomorrow. Every
> time I try to compile it, Visual Studio keeps telling me I'm missing a ;
> before <<
>
> What's wrong?
>
> Code follows:
>
> //Ch6ConE06.cpp
>
> //Displays a class rank based on a code
>
> //entered by the user
>
> //Created/revised by <your name> on <current date>
>
>
>
> #include <iostream>
>
>
>
> using std::cout;
>
> using std::cin;
>
> using std::endl;
>
>
>
> int main()
>
> {
>
> //declare variable
>
> int code = 0;
>
>
>
> //enter input
>
> cout << "Enter the code: ";
>
> cin >> code;
>
> //enter switch statements
>
> switch(code)
>
> {
>
> case 1:;
>
> cout << "Freshman. " ; << endl;
>
> break;
>
> case 2:
>
> cout <<"Sophomore"; << endl;
>
> break;
>
> case 3:
>
> cout << "Junior "; << endl;
>
> break;
>
> case 4:
>
> cout << "Senior" ; << endl;
>
> break;
>
> case 5:
>
> cout << "Error! "; << endl;
>
> }
>
> //endswitch
>
> //display output
>
>
>
> return 0;
>
> } //end of main function
>
>
>
> Jes
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.441 / Virus Database: 271.1.1/2992 - Release Date: 07/10/10
> 19:59:00
>
>
--
Have a great day,
Alex (msg sent from GMail website)
mehgcap@xxxxxxxxx; http://www.facebook.com/mehgcap
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